Air pump

ABSTRACT

An air pump includes a mount member having a main body and a chamber. An air bag set has a substrate, two air bags, each of which have an air chamber and a linking portion. An insulating plate has a plate member, two inlets and two outlets communicated with the air chambers of the air bags respectively. A ventilation part has a pad member, two inlet valves and two outlet valves, both of which are communicated with the inlets and the outlets of the insulating plate respectively. An air guide device has a main member, two inlets and two outlets, both of which are communicated with the inlet and outlet valves of the ventilation part respectively. A linking assembly has rotary base and a linking portion connected to the linking portion of the air bag set.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a pump, and more particularly to an air pump having an improved structure and assembly.

2. Description of the Related Art

A conventional air pump has an old style of assembly and complicated structure, and more particularly, the conventional air pump is consisted of a large amount of components and it is a hard job to assemble these components. A following drawback of that is the higher cost of fabrication. There is still no a fine solution to fix aforesaid drawbacks of the conventional air pump.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide an air pump, which has a new type of structure to reduce the numbers of components, make the process of assembly easier and faster and reduce the cost of fabrication.

According to the objective of the present invention, an air pump, which is driven by a spindle of a motor, comprises a mount member having a main body and a chamber. An air bag set has a substrate, an air bag provided on the substrate, in which an air chamber is formed. The air bag has a bag bladder and a linking portion. An insulating plate has a plate member. An inlet and an outlet are communicated with the air chamber of the air bag set. A ventilation part has a pad member. An inlet valve is communicated with the inlet of the insulating plate and an outlet valve is communicated with the outlet of the insulating plate. An air guide device has a main member. An inlet is communicated with the inlet valve of the ventilation part and an outlet is communicated with the outlet valve of the ventilation part. A linking assembly has rotary base driven by the spindle of the motor for rotation and a linking portion connected to the linking portion of the air bag of the air bag set.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of a preferred embodiment of the present invention;

FIG. 2 is an exploded and sectional view of the preferred embodiment of the present invention;

FIG. 3 is a sectional view of the preferred embodiment of the present invention;

FIG. 4 is a sectional view along the 4-4 line of FIG. 3;

FIG. 5 is an potion exploded view of the second mount, the air bag set and the bag linking device, and

FIG. 6 and FIG. 7 are sectional views of the preferred embodiment of the present invention, showing the air pump working.

DETAILED DESCRIPTION OF THE INVENTION

As shown in FIGS, from FIG. 1 to FIG. 5, an air pump of the preferred embodiment of the present invention, which is driven by a spindle M1 of a motor M comprises:

A mount member 10 is consisted of a first mount 11 and a second mount 21. The first mount 11 has a main body 13, a base 15, a chamber 17 and four coupling portions 19. The second mount 21 has a main body 23, four positioning recesses 24 on the main body 23, two surrounding members 25, two locating posts 27 and four coupling portions 29. The coupling portions 29 are four through holes and aligned with the coupling portions 19 of the first mount 11 respectively. The motor M is mounted on the mount member 10 via two bolts 93.

An air bag set 30 has a substrate 31, four positioning plates 32 provided on the substrate 31 and received in the positioning recesses 24 of the mount member 10 respectively, two air bags 33 provided on the substrate 31 and formed two air chambers 35 therein. Each air bag 33 has a bag bladder 331, a bag head 333 and a linking portion 335 in sequence.

An insulating plate 40 has a plate member 41, two inlets 43, two outlets 45, two locating holes 47 to receive the locating posts 27 of the mount member 10 respectively and four coupling portions 49.

A ventilation part 50 has a pad member 51, two inlet valves 53 and two outlet valves 55 for the inlets 43 and the outlets 45 of the insulating plate 40 respectively, two sealing ribs 57 formed on a top side and a bottom side of the pad member 61 for surrounding and isolating said inlet valve 53 and said outlet valve 55, and four coupling portions 69.

An air guide device 60 has a main member 61, two inlets 63, an air chamber 65, an air pipe 67 having an outlet 68 therethrough and four coupling portions 69.

A linking assembly 70 has a rotary base 71 and a bag linking device 81. The rotary base 71 has a rotary member 73 driven by the spindle M1 of the motor M for rotation and a shaft 75 tilted toward a center axis of the rotary base 71. The bag linking device 81 has a shaft portion 87, a disk 83, two linking portions 85 and a ball 89 received in the shaft portion 87.

Four coupling devices 91 are inserted through the coupling portions 69, 59, 49 and 29 of the air guide device 60, the ventilation part 50, the insulating plate 40 and the second mount 21 and screwed to the coupling portions 19 of the mount member 10 respectively.

First, a hose (not shown in FIGS.) is connected to the air pipe 67 of the air guide device 60. The spindle M1 of the motor M drives the rotary base 71 of the linking assembly 70 for rotation. The shaft 75 of the rotary base 71 drives the bag linking device 81 for rotation to move the linking portions 335 of the air bags 33 of the air bag set 30 upwards and downwards via the linking portions 85 of the bag linking device 81 respectively.

As shown in FIG. 3, in the meantime, air in the air chamber 35 of the air bag set 30 is compressed and flows to the hose (not shown) via the outlet 45 of the insulating plate 40, the outlet valve 55 of the ventilation part 50, the air chamber 65 and the outlet 68 of the guide device 60.

On the contrary, another air bag 33 of the air bag set 30 sucks air into the air chamber 35 of the air bag set 30 from the inlet 63 of the air guide device 60 via the inlet valve 53 of the ventilation part 50 and the inlet 43 of the insulating plate 40. The air will be exhausted to the hose as described above in the next action.

FIG. 6 shows the rotary base 71 is rotated 90 degrees.

As shown in FIG. 7, the rotary base 71 rotates continuously to make the air bag 33 at right sucking air into the air chamber 35 from the inlet 63 of the air guide device 60 and the air bag 33 at left exhausting the air in the air chamber 35 out as described above.

The character of the present invention is that the air pump of the present invention is different from the conventional air pump in structure to meet the requirement of various sizes of the air pumps. 

1. An air pump, which is driven by a spindle of a motor, comprising: a mount member having a main body and a chamber; an air bag set having a substrate, an air bag provided on said substrate, in which an air chamber is formed, wherein said air bag has a bag bladder and a linking portion; an insulating plate having a plate member, an inlet and an outlet, wherein said inlet and said outlet are communicated with said air chamber of said air bag set; a ventilation part having a pad member, an inlet valve and an outlet valve, wherein said inlet valve is communicated with said inlet of said insulating plate and said outlet valve is communicated with said outlet of said insulating plate; an air guide device having a main member, an inlet and an outlet, wherein said inlet is communicated with said inlet valve of said ventilation part and said outlet is communicated with said outlet valve of said ventilation part, and a linking assembly having rotary base driven by said spindle of said motor for rotation and a linking portion connected to said linking portion of said air bag of said air bag set.
 2. The air pump as defined in claim 1, wherein said mount member has a first mount and a second mount assembled together.
 3. The air pump as defined in claim 1, wherein said mount member has a surrounding member to receive said bag bladder of said air bag of said air bag set therein.
 4. The air pump as defined in claim 1, wherein said pad member of said ventilation part has a sealing rib surrounding and isolating said inlet valve and said outlet valve.
 5. The air pump as defined in claim 1, wherein said air guide device further has an air pipe communicated to said outlet of said air guide device.
 6. The air pump as defined in claim 1, wherein said linking assembly further has an bag linking device pivoted on said rotary base and said linking portion is provided on said bag linking device.
 7. The air pump as defined in claim 1, wherein said mount member has a positioning recess and said air bag set has a positioning plate to be received in said positioning recess of said mount member.
 8. The air pump as defined in claim 1, wherein the quality of air bag of said air bag set is two. 